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    Compact Contacting Systems and Methods for Scavenging Sulfur-Containing Compounds
    1.
    发明申请
    Compact Contacting Systems and Methods for Scavenging Sulfur-Containing Compounds 审中-公开

    公开(公告)号：US20180362858A1

    公开(公告)日：2018-12-20

    申请号：US15950867

    申请日：2018-04-11

    申请人： Shwetha Ramkumar ,  Donald P. Shatto ,  P. Scott Northrop ,  Sean T. Philbrook

    发明人： Shwetha Ramkumar ,  Donald P. Shatto ,  P. Scott Northrop ,  Sean T. Philbrook

    IPC分类号： C10G25/00 ,  B01D53/14

    摘要： A hydrogen sulfide (H2S) scavenging system for removing H2S, mercaptans, and/or other sulfur-containing compounds from a natural gas stream. A co-current contacting system is located in-line within a pipe and receives the natural gas stream and a liquid scavenger stream. The co-current contacting system includes a co-current contactor including a droplet generator and a mass transfer section. The droplet generator generates droplets from the liquid scavenger stream and disperses the droplets into the natural gas stream. The mass transfer section provides a mixed, two-phase flow having a vapor phase and a liquid phase. The liquid phase includes the liquid scavenger stream with H2S, mercaptans, and/or other sulfur-containing compounds absorbed from the natural gas stream, and the vapor phase includes the natural gas stream. A separation system separates the vapor phase from the liquid phase.

    Integration of cold solvent and acid gas removal
    3.
    发明授权
    Integration of cold solvent and acid gas removal 有权

    公开(公告)号：US11000797B2

    公开(公告)日：2021-05-11

    申请号：US16102297

    申请日：2018-08-13

    申请人： David W. Maher ,  Shwetha Ramkumar ,  P. Scott Northrop ,  Robert D. Denton

    发明人： David W. Maher ,  Shwetha Ramkumar ,  P. Scott Northrop ,  Robert D. Denton

    IPC分类号： B01D53/14 ,  B01D61/24 ,  C10L3/10 ,  B01D53/18 ,  B01D53/22 ,  B01D11/00

    摘要： A method of separating impurities from a natural gas stream. The natural gas stream is cooled through heat exchange with one or more process streams to produce a chilled gas stream, which is contacted with a lean solvent stream in a contactor to separate hydrogen sulfide (H2S) from the chilled gas stream, thereby producing a rich solvent stream and a partially-treated gas stream. Carbon dioxide (CO2) and H2S are separated from the partially-treated gas stream in a membrane separation system, thereby creating a fully-treated gas stream and a permeate gas stream, the permeate gas stream being comprised primarily of H2S and CO2, and the fully-treated gas stream being comprised primarily of natural gas. The fully-treated gas stream and the permeate gas stream are at a lower temperature than the partially-treated gas stream. The fully-treated gas stream and the permeate gas stream comprise the one or more process streams.

    Integration of Cold Solvent and Acid Gas Removal
    4.
    发明申请
    Integration of Cold Solvent and Acid Gas Removal 审中-公开

    公开(公告)号：US20190054415A1

    公开(公告)日：2019-02-21

    申请号：US16102278

    申请日：2018-08-13

    申请人： David W. Maher ,  Shwetha Ramkumar ,  P. Scott Northrop ,  Robert D. Denton

    发明人： David W. Maher ,  Shwetha Ramkumar ,  P. Scott Northrop ,  Robert D. Denton

    IPC分类号： B01D53/14 ,  B01D61/24 ,  B01D11/04

    摘要： A method of separating impurities from a natural gas stream. CO2 and H2S are separated from the natural gas stream in a membrane separation system, thereby creating a partially-treated gas stream and a permeate gas stream, both of which are at a lower temperature than the natural gas stream. The partially-treated gas stream is contacted with a first lean solvent stream in a first contactor to separate H2S from the partially-treated gas stream, thereby producing a first rich solvent stream and a fully-treated gas stream. The permeate gas stream is contacted with a second lean solvent stream in a second contactor to separate H2S therefrom to produce a second rich solvent stream and a CO2 gas stream. H2S and CO2 are removed from the first and second rich solvent streams, thereby producing the first and second lean solvent streams.

    Integration of Cold Solvent and Acid Gas Removal
    6.
    发明申请
    Integration of Cold Solvent and Acid Gas Removal 审中-公开

    公开(公告)号：US20190054416A1

    公开(公告)日：2019-02-21

    申请号：US16102297

    申请日：2018-08-13

    申请人： David W. Maher ,  Shwetha Ramkumar ,  P. Scott Northrop ,  Robert D. Denton

    发明人： David W. Maher ,  Shwetha Ramkumar ,  P. Scott Northrop ,  Robert D. Denton

    IPC分类号： B01D53/14 ,  B01D61/24

    摘要： A method of separating impurities from a natural gas stream. The natural gas stream is cooled through heat exchange with one or more process streams to produce a chilled gas stream, which is contacted with a lean solvent stream in a contactor to separate hydrogen sulfide (H2S) from the chilled gas stream, thereby producing a rich solvent stream and a partially-treated gas stream. Carbon dioxide (CO2) and H2S are separated from the partially-treated gas stream in a membrane separation system, thereby creating a fully-treated gas stream and a permeate gas stream, the permeate gas stream being comprised primarily of H2S and CO2, and the fully-treated gas stream being comprised primarily of natural gas. The fully-treated gas stream and the permeate gas stream are at a lower temperature than the partially-treated gas stream. The fully-treated gas stream and the permeate gas stream comprise the one or more process streams.

    Fractionation system using bundled compact co-current contacting systems
    7.
    发明授权
    Fractionation system using bundled compact co-current contacting systems 有权

    公开(公告)号：US11260342B2

    公开(公告)日：2022-03-01

    申请号：US15949613

    申请日：2018-04-10

    申请人： Norman K. Yeh ,  Edward J. Grave ,  Shwetha Ramkumar ,  Juan C. Juarez

    发明人： Norman K. Yeh ,  Edward J. Grave ,  Shwetha Ramkumar ,  Juan C. Juarez

    IPC分类号： B01D45/14 ,  B01D53/14 ,  B01D53/18 ,  C10G5/00 ,  B01D1/20 ,  B01D1/16

    摘要： A fractionation system for removing heavy hydrocarbons in a gas stream. A stripping section receives a predominantly liquid phase of the feed gas stream. A co-current contacting system receives a predominantly vapor phase of the feed gas stream. The co-current contacting system includes a compact contacting bundle disposed within a vessel and including a plurality of substantially parallel contacting units, each of the plurality of contacting units having a droplet generator, a mass transfer section, and a separation system. Each droplet generator generates droplets from a liquid disperses the droplets into a gas stream. Each mass transfer section provides a mixed, two-phase flow having a vapor phase and a liquid phase. Each separation system separates the vapor phase from the liquid phase such that the concentration of heavy hydrocarbons in the vapor phase is lower than in the liquid phase.

    Fractionation system using compact co-current contacting systems
    8.
    发明授权
    Fractionation system using compact co-current contacting systems 有权

    公开(公告)号：US11000795B2

    公开(公告)日：2021-05-11

    申请号：US15964866

    申请日：2018-04-27

    申请人： Norman K. Yeh ,  Edward J. Grave ,  Shwetha Ramkumar ,  Juan C. Juarez

    发明人： Norman K. Yeh ,  Edward J. Grave ,  Shwetha Ramkumar ,  Juan C. Juarez

    IPC分类号： B01D53/14 ,  B01D53/18 ,  C10L3/10 ,  B01D3/14

    摘要： A fractionation system for removing heavy hydrocarbons in a gas stream. A stripping section receives a predominantly liquid phase of a feed gas stream. First and second co-current contacting systems are located in-line within a pipe. The first co-current contacting system receives a predominantly vapor phase of the feed gas stream. Each co-current contacting system includes a co-current contactor and a separation system. Each co-current contactor includes a droplet generator and a mass transfer section. The droplet generator generates droplets from a liquid and disperses the droplets into a gas stream. The mass transfer section provides a mixed, two-phase flow having a vapor phase and a liquid phase. The separation system separates the vapor phase from the liquid phase.